Transformer Corrugated Radiator leak oil problem analysis and the method to solve the problem. ABSTRACT: The expansion and cracking of corrugated heat sinks in Amorphous Metal Transformers cause oil leakage. The reason is that the large pressure difference between inside and outside of Transformer Oil system causes the expansion and bulging of Transformer Radiator . By reforming transformer and increasing oil pillow, the transformer can operate safely and steadily. Key words: corrugated transformer tank ; transformer; radiator ; corrugated fins wall ; differential pressure 1.Preface The expansion and cracking of Corrugated Radiator and oil leakage of Amorphous alloy Transformer with fully sealed Corrugated Tank seriously affect the safe and stable operation of the equipment. In this article, the causes of transformer oil leakage fault are analyzed, and countermeasures are found and improved. ...